Question 1

The octet rule is applied to bonding in carbon containing compounds.In accordance with the octet rule,

Accepted Answer

A) each bonded carbon atom forms eight bonds. 
B) all carbon containing compounds contain at least eight bonds. 
C) each bonded carbon atom shares electrons so that it has exactly eight outer valence electrons. 
D) the number of atoms in any carbon containing compound is a multiple of eight. 
A) each bonded carbon atom forms eight bonds. 
B) all carbon containing compounds contain at least eight bonds. 
C) each bonded carbon atom shares electrons so that it has exactly eight outer valence electrons. 
D) the number of atoms in any carbon containing compound is a multiple of eight.

Question 2

Which is not true concerning the discovery and development of the penicillin antibiotics?

Accepted Answer

A) Alexander Fleming noted that the mold Penicillium notatum inhibited bacterial growth 
B) The first step in the development of these drugs was the isolation of the active agent produced by the mold Penicillium notatum 
C) There are currently more than a dozen different penicillins in clinical use 
D) World War I gave added impetus for the development of the penicillin antibiotics 
A) Alexander Fleming noted that the mold Penicillium notatum inhibited bacterial growth 
B) The first step in the development of these drugs was the isolation of the active agent produced by the mold Penicillium notatum 
C) There are currently more than a dozen different penicillins in clinical use 
D) World War I gave added impetus for the development of the penicillin antibiotics

Question 3

High fructose corn syrup is produced from the partial conversion of glucose to fructose.For this reaction K=0.74.If the glucose concentration is 5x10-3 M,the fructose concentration must equal

Accepted Answer

A) 6.8x10-3 M. 
B) 3.7x10-3 M. 
C) 4.0x10-2 M. 
D) 1.4x10-4 M. 
A) 6.8x10-3 M. 
B) 3.7x10-3 M. 
C) 4.0x10-2 M. 
D) 1.4x10-4 M.

Question 4

What structural feature do the two hormones shown have in common?

Accepted Answer

A) Both have alcohol functional groups 
B) Both have ketone functional groups 
C) Both are steroids 
D) There are no structural features in common 
A) Both have alcohol functional groups 
B) Both have ketone functional groups 
C) Both are steroids 
D) There are no structural features in common

Question 5

Isomers are compounds that have

Accepted Answer

A) the same chemical formulas and molecular structures but different physical properties. 
B) the same chemical formulas but different molecular structures and physical properties. 
C) different chemical formulas and molecular structures but the same physical properties. 
D) different chemical formulas,molecular structures,and physical properties. 
A) the same chemical formulas and molecular structures but different physical properties. 
B) the same chemical formulas but different molecular structures and physical properties. 
C) different chemical formulas and molecular structures but the same physical properties. 
D) different chemical formulas,molecular structures,and physical properties.

Question 6

Which of the following are general goals for green chemical synthesis methods? I.There is less waste
II)Harsh reagents are avoided
III)It uses recombinant technology
IV)It needs intense purification

Accepted Answer

A) I and IV only 
B) II and III only 
C) III and IV only 
D) I,II,and III only 
A) I and IV only 
B) II and III only 
C) III and IV only 
D) I,II,and III only

Question 7

Select the correct statement regarding weak and strong acids.

Accepted Answer

A) A weak acid will resist changes to pH 
B) A strong acid will resist changes to pH 
C) A strong acid will not release its protons easily 
D) A weak acid will completely dissociate in water 
A) A weak acid will resist changes to pH 
B) A strong acid will resist changes to pH 
C) A strong acid will not release its protons easily 
D) A weak acid will completely dissociate in water

Question 8

Only three of the statements about buffers in the body below are correct.Select the false statement.

Accepted Answer

A) Organs or cell components will differ in their normal pH 
B) Buffers are only necessary in the blood and stomach 
C) Weak acids only make good buffers when the pH is near their pKa 
D) Strong acids will not make good buffers 
A) Organs or cell components will differ in their normal pH 
B) Buffers are only necessary in the blood and stomach 
C) Weak acids only make good buffers when the pH is near their pKa 
D) Strong acids will not make good buffers

Question 9

Which of the following is not a class of biological macromolecule?

Accepted Answer

A) Steroids 
B) Lipids 
C) Nucleic acids 
D) Polysaccharides 
A) Steroids 
B) Lipids 
C) Nucleic acids 
D) Polysaccharides

Question 10

Which of these incorrectly pairs a hormone with its function?

Accepted Answer

A) Thyroxin-regulates metabolism 
B) Insulin-enables the body to use glucose (blood sugar) for energy 
C) Adrenaline (epinephrine)-prepares the body to "fight or flee" 
D) Progesterone-controls muscle mass 
A) Thyroxin-regulates metabolism 
B) Insulin-enables the body to use glucose (blood sugar) for energy 
C) Adrenaline (epinephrine)-prepares the body to "fight or flee" 
D) Progesterone-controls muscle mass

Question 11

A structure-activity-relationship study

Accepted Answer

A) considers the relationship of many enzymes based upon both their structure and activity. 
B) examines the structure of an enzyme then compares it to its activity with the drug. 
C) makes a series of small structural changes to the drug then compares it to its activity with the enzyme. 
D) isolates small portions of the protein to examine how their structure relates to their activity. 
A) considers the relationship of many enzymes based upon both their structure and activity. 
B) examines the structure of an enzyme then compares it to its activity with the drug. 
C) makes a series of small structural changes to the drug then compares it to its activity with the enzyme. 
D) isolates small portions of the protein to examine how their structure relates to their activity.

Question 12

The body's chemical messengers,called ________,are produced in the endocrine glands.

Accepted Answer

A) enzymes 
B) hormones 
C) isomers 
D) viruses 
A) enzymes 
B) hormones 
C) isomers 
D) viruses

Question 13

The common OTC medication ibuprofen is sold as a racemic mixture although only the L-isomer is a pain reliever.What does the term racemic mixture mean?

Accepted Answer

A) There is an equal mixture of the + and - optical isomers in the drug preparation 
B) There are two active ingredients in the drug preparation 
C) The inactive optical isomer does not cause serious side effects 
D) The inactive isomer is transformed into the active isomer in the body 
A) There is an equal mixture of the + and - optical isomers in the drug preparation 
B) There are two active ingredients in the drug preparation 
C) The inactive optical isomer does not cause serious side effects 
D) The inactive isomer is transformed into the active isomer in the body

Question 14

Which compound cannot exist as a pair of optical isomers?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

Comparing the structures of aspirin,ibuprofen,and acetaminophen,what structural units do they share?

Accepted Answer

A) Acid functional groups 
B) Amide functional groups 
C) Benzene rings 
D) Ester functional groups 
A) Acid functional groups 
B) Amide functional groups 
C) Benzene rings 
D) Ester functional groups

Question 16

The equilibrium constant for the association of thyroxin with its receptor is greater than 1.Given the reaction below,which of the following statements are true. thyroxin + receptor à complex

Accepted Answer

A) Unbound thyroxin will be favored over bound 
B) Bound thyroxin will be favored over unbound 
C) The receptor has a very low concentration in the body 
D) The hormone,thyroxin,has a very low concentration in the body 
A) Unbound thyroxin will be favored over bound 
B) Bound thyroxin will be favored over unbound 
C) The receptor has a very low concentration in the body 
D) The hormone,thyroxin,has a very low concentration in the body

Question 17

Which functional group does this molecule contain?

Accepted Answer

A) Acid 
B) Alcohol 
C) Amine 
D) Ester 
A) Acid 
B) Alcohol 
C) Amine 
D) Ester

Question 18

Acetic acid has a pKa of 4.8.Select the representation that shows the majority species at pH 7.

Accepted Answer

A) CH3COOH2+ 
B) CH3COOH 
C) CH3COO- 
D) CH2COO2- 
A) CH3COOH2+ 
B) CH3COOH 
C) CH3COO- 
D) CH2COO2-

Question 19

Which pair represents isomers?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 20

Select the formula for the equilibrium constant for the association of epinephrine and its receptor. epinephrine + receptor à complex

Accepted Answer

A)    
B)   
B 
C)    
D)    
A)    
B)   
B 
C)    
D)

The octet rule is applied to bonding in carbon containing compounds.In accordance with the octet rule,

Which is not true concerning the discovery and development of the penicillin antibiotics?

High fructose corn syrup is produced from the partial conversion of glucose to fructose.For this reaction K=0.74.If the glucose concentration is 5x10^-3 M,the fructose concentration must equal

What structural feature do the two hormones shown have in common?

Isomers are compounds that have

Which of the following are general goals for green chemical synthesis methods? I.There is less waste II)Harsh reagents are avoided III)It uses recombinant technology IV)It needs intense purification

Select the correct statement regarding weak and strong acids.

Only three of the statements about buffers in the body below are correct.Select the false statement.

Which of the following is not a class of biological macromolecule?

Which of these incorrectly pairs a hormone with its function?

A structure-activity-relationship study

The body's chemical messengers,called ________,are produced in the endocrine glands.

The common OTC medication ibuprofen is sold as a racemic mixture although only the L-isomer is a pain reliever.What does the term racemic mixture mean?

Which compound cannot exist as a pair of optical isomers?

Comparing the structures of aspirin,ibuprofen,and acetaminophen,what structural units do they share?

The equilibrium constant for the association of thyroxin with its receptor is greater than 1.Given the reaction below,which of the following statements are true. thyroxin + receptor à complex

Which functional group does this molecule contain?

Acetic acid has a pKa of 4.8.Select the representation that shows the majority species at pH 7.

Which pair represents isomers?

Select the formula for the equilibrium constant for the association of epinephrine and its receptor. epinephrine + receptor à complex

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Exam 12: Health Medicine

The octet rule is applied to bonding in carbon containing compounds.In accordance with the octet rule,

Which is not true concerning the discovery and development of the penicillin antibiotics?

High fructose corn syrup is produced from the partial conversion of glucose to fructose.For this reaction K=0.74.If the glucose concentration is 5x10-3 M,the fructose concentration must equal

What structural feature do the two hormones shown have in common?

Isomers are compounds that have

Which of the following are general goals for green chemical synthesis methods? I.There is less waste II)Harsh reagents are avoided III)It uses recombinant technology IV)It needs intense purification

Select the correct statement regarding weak and strong acids.

Only three of the statements about buffers in the body below are correct.Select the false statement.

Which of the following is not a class of biological macromolecule?

Which of these incorrectly pairs a hormone with its function?

A structure-activity-relationship study

The body's chemical messengers,called ________,are produced in the endocrine glands.

The common OTC medication ibuprofen is sold as a racemic mixture although only the L-isomer is a pain reliever.What does the term racemic mixture mean?

Which compound cannot exist as a pair of optical isomers?

Comparing the structures of aspirin,ibuprofen,and acetaminophen,what structural units do they share?

The equilibrium constant for the association of thyroxin with its receptor is greater than 1.Given the reaction below,which of the following statements are true. thyroxin + receptor à complex

Which functional group does this molecule contain?

Acetic acid has a pKa of 4.8.Select the representation that shows the majority species at pH 7.

Which pair represents isomers?

Select the formula for the equilibrium constant for the association of epinephrine and its receptor. epinephrine + receptor à complex

Portable Electronics: the Periodic Table in the Palm of Your Hand

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters

High fructose corn syrup is produced from the partial conversion of glucose to fructose.For this reaction K=0.74.If the glucose concentration is 5x10^-3 M,the fructose concentration must equal